DOMException - INVALID_CHARACTER_ERR: Raised if the specified qualified name
contains an illegal character.
NAMESPACE_ERR: Raised if the qualifiedName is
malformed, if the qualifiedName has a prefix and the
namespaceURI is null or an empty string,
or if the qualifiedName has a prefix that is "xml" and
the namespaceURI is different from
"http://www.w3.org/XML/1998/namespace" .